Are you going by the temp gauge on the dash to say it's overheating ? Did you hook up a scan tool an look at live data from the coolant temp sensor to the PCM/ECM - engine computer ? Use a infrared thermometer to check engine temp at the thermostat housing ? Don't remember how many gm instrument clusters i sent to be fixed . GM had a problem with stepper motors inside the instrument cluster , stepper motors control the gauges needles . 2003 to 2006 this was a problem . you mite think it's overheating whens it's not .
https://www.youtube.com/watch?v=oTm2oDx-_GM
I've put a new sensor in also everything but the heater core is new I can hear it boiling inside the engine
Do the cooling fans work ?
yes fans work
×
Are fans working/any hoses collapsed -thermostat in correctly -radiator clogged--worst any fluid mixing with oil [head gasket ]
everything is good nothing in oil
×
Is the cooling fan working? Or the temperature switch could be at fault. How did you bleed the air out of the system?
fan work bleed it the way the book said to bleed
×
Advanced ignition from bad knock sensor, stuck closed EGR valve or clogged passageway . Have you heard spark knock ?
SOURCE: Thermostat in a 2003 chevy venture van
the bottom boult is hard but can be done need to use a 10 or 12 stubby wrench and take a pry bar and lighty pry heat shild away to get bottom bolt dont need to take it out all the way just loosen and slide down
SOURCE: how to replace water pump
after you swap the pump just open the bleeds with it running till you get coolant and no air. if you fill slow it helps.
SOURCE: Thermostat in a 2003 chevy venture van
no you dont need a special tool you have to take the throttle body off it makes it sooooooo much more simple.
SOURCE: bleeding hyd system on 05 sebring convertible top
You are probably low on fluid.
Behind the rear seat is your motor/pump/reservoir combination.
With the top down, fill the reservoir to overflowing with ATF.
Cycle the system a few times and repeat.
Do this till the reservoir will take no more fluid.
Check the lines and cylinders for leaks. If you replace any lines or cylinders, always do them in pairs.
Karl at Topgunwon.com
104 views
Usually answered in minutes!
×